stdlib: terraform support

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

stdlib/terraform/terraform.cue

@@ -0,0 +1,65 @@
+package terraform
+
+import (
+	"encoding/json"
+
+	"dagger.io/dagger"
+	"dagger.io/dagger/op"
+)
+
+#Configuration: {
+	version: string | *"latest"
+
+	source: dagger.#Artifact
+
+	tfvars?: [string]: _
+
+	env: [string]: string
+
+	state: #up: [
+		op.#FetchContainer & {
+			ref: "hashicorp/terraform:\(version)"
+		},
+
+		op.#Copy & {
+			from: source
+			dest: "/src"
+		},
+
+		if tfvars != _|_ {
+			op.#WriteFile & {
+				dest:    "/src/terraform.tfvars.json"
+				content: json.Marshal(tfvars)
+			}
+		},
+
+		op.#Exec & {
+			args: ["terraform", "init"]
+			dir:   "/src"
+			"env": env
+		},
+
+		op.#Exec & {
+			args: ["terraform", "apply", "-auto-approve"]
+			always: true
+			dir:    "/src"
+			"env":  env
+		},
+	]
+
+	output: {
+		#up: [
+			op.#Load & {from: state},
+			op.#Exec & {
+				args: ["sh", "-c", "terraform output -json > /output.json"]
+				dir:   "/src"
+				"env": env
+			},
+			op.#Export & {
+				source: "/output.json"
+				format: "json"
+			},
+		]
+		...
+	}
+}